Ophthalmic mounting



19 H. A. SANGREN I OPHTHALMIC MOUNTING Filed Dec. 18, 1925 Hark (l. Sangren, W am One of the leading'ob r cation panying drawings,

- EAR BY A..'SAI\TGREN,1 or, sourinaninen,

f or'rI'onL' COMPANY, on SOUTHBRIDGE,

ION OF MASSACHUSETTS.

OP THALMIC 'MoUn rIne.

Missile -issues, Assroivon {to AMEIfioAii T' Y P T NT tog F ng MAssAoHUsETTs; A voLU 'ITARY .nsso'qrA- 1 pficaab filed December 18,1925. Serial narazza" I This invention relates to improvements in 'ophth refere construction I for the same.

almic mountings and has" particular nce'to an improved formof bridge ects of the present invention is to provide means forpositioning the lenses ofan ophthalmic mounting before the eyes of the wearer.

A further object of the present invention is to provide means whereby parts of ophthalmic mountings of difierent styles and 'sizes may be'interchangeable.

Other objects and advantages ofv my 1mprove d construction should b e readily apparent by reference to the following specifiin which similar characters designate similar parts throughout, the

prefer been shown and describe tration.

Ref

Figure 1 is a front elevation 0 red form 0 d by way of illuse drawings erring to th f a spectacle embodying the invention,

Figure 2 1s a top p lan view of the spectacle showing the adjustment of same Figure 3 is a detail perspective view, Figure 4 is a view showing a separate bridge member,

Figure 5 is a View showing a frameless mounting.

In the fitting of ophthalmic mountings it has been found that the facial characteristics of individuals Vary as to width of nose,

so ments carry and shapes these upillary distance, overhang of eyebrow and forth. To meet these various requireit has been necessary for the dealer to a stock of mountings of different srzes of bridges, etc., and even wlth it has been necessary to bend the bridges considerably to adjust the mounting to the I hav face of the wearer. In my invention e provided means whereby the lenses type y bridges desire invention provides as desired. Therefore, interchangeable of various styles, permitting of. any d adjustment of the lenses, in, out, up,

of mounting,

taken in connection with theaccomf the invention only having or down, and bywhichtheproper papillary distance may be accurately provided.- 1

' Another great advantage of myinvention is that it provides means whereby a great saving-in investmentby the dealer may be made." He will notzhave to carry in stock such a large assortment of styles ands izes ashas formerly been the case. i

is employed to denote. the usual eye-wires "or lens frames of a spectacle mounting, having .the'end pieces 11 for-the temples 12, the said temples being adapted toretain the mounting in position on the face of thew arer by engagement withthe ears. i

' Disposed centrally offthe mounting, and between the pair of lens rimsfor frames 10 is my. improved adjustable bridge member 13, having the arms 114 terminatingimthe apertured ends .15, thesaid apertured ends 15 having the notchedfaces l6 and 17,.re-

spectively, on the upper and lower sides, contacting with andiadapted to interlock with the notched faces 18 carried by the Referring to the drawmgs, thenumeral split link members 19 through the clamp screw 20. v

Thenotched faces 21 carried by the opposite ends of the split link 19 are adapted to engage and interlock with the notched faces 22 of the apertured lugs 23 carried by the eye wires or frames 10. A second screw 24 is used to clamp these members together.

The operation of the invention is as fol lows: To adjust the bridge member to form a wider distance between the lenses, the screw 20 is loosened to disengage the notched faces 16 and 17 with 18,- and the link 19 along with the frame 10 is'swung about the screw 20 as a pivot until the screw 24; occupies the desired position laterally, after which the screw 20' is again tightened. The lens rim or frame 10 will then be set off at an undesired angle. To bring the lens rim or frame back to its required position'in relation tothe face of the wearer the screw 24 is loosened and the lens rim of the frame adjusted similarly tothe adjustment at the screw 20, after which the screw 24: is tightened. The notched faces tend to interlock with each other and hold the frame in positive alignment. g

It will readily be seen that with this construction any size of bridge member 13, as

right is hereby reserved tomake suchchanges shown in Figure 4, may be interchanged by removing the said screws 2Qand replacing the undesired bridge member 13 with the one desired. This not only provides a bridge of the desired width but-one also having the desired in 'an'd'out dimensions; A rimless mounting as shown 1n Figure 5 ma be used 1n connection with the adjustable ridge by having the strap 'prov'ided' with a notched and apertured lug 26,; -the said lug being adapted to be used and connected in the same; manner as the lug 23 on V as properly fall within :the scope of the ap- '"rated portions together. vi

.pended claims-Without departing from "or exceeding the spirit of the invention;

, Having described the invention, Whatds claimed is: p 1* i x In a device :oflthecharacter described, a

' bridge having :a serrated lug; a lens :rim member having a serrated lug, a link -'-member having serrated portions engaging the serrated lugs of t he first two portions,

and clamping means forseouring the ser- 2.--In a'device of the-character described, a

- bridge and of the pair of lens rims having serrated lugs, a bridge member havinge serrated :lug on each end, link members having serrated portions gengaglng the serrated lugs of the bridge and rim member, and clamping means for {holding thevarious serrated portions in :alignment.

3. In a device of the characterdescribed, a bridge having a lug with serrations on two sides thereofla lens rim having a lug having serrations on two sides thereof, a split link :member having serrations adaptedto engage the serrations ot'vthefbridge andrim,

respectively, and clamping means for"holding the serrated portions of the link and alignment. I r u H 4. Ina device of thelcharacter fdeseribed, a bridge having an end'bearingmembena lens rim member having a lug with ':a bearing member, a link member having bearings adapted to'engage the bridge and rim mem link and Tim member in her bearings, and -.clam -ping means .to hold the respective bearings together.

5. In a deviceof-the character described a bridge having a pivotal bearing ,membenga 1 lens rlm having, a pivotal bearing anember,

a link member having pivotal bearings adapted to :engage the bridge and rim member bearings respectively, and clamping means :to hold the respective bearings together and to permit pivotal adjustment abouttherespective api'votal bearings.

HARRY A. SANGREN. 

